The main components of vertical impact crusher are springs, rods, impact frame, flat hammer, and liner plate, etc., in which the shape of the flat hammer is closely related to the fastening methods and working load, its design should meet the requirements of reliable operation, easy assembling and improving the metal utilization ratio of flat hammer. Now let's talk about the manufacturing requirements of flat hammer for vertical imapct crusher.
The specific requirements about flat hammer in manufacture are as follows:
1. The flat hammer often use the high strength of high manganese steel, high chromium cast iron, alloy steel, wrought iron or other wear-resistant materials.
2. The vertical impact crusher impacts the materials from top to bottom, and be able to throw it up to the top of the impact plate.
3. Except for the common rectangular shape, the shape of the flat hammer have T type, S type, I type and grooved types, in which the most widely used is rectangular shape.
4. The flat hammer repair can be conducted by overlaying welding of wear-resistant material on carbon steel and high manganese steel.
5. When the flat hammers replaced, all of the flat hammers must be removed together and change face to prevent the rotor unbalance and crusher vibration, which causes the accident occured.
6. The gaps between the flat hammer and grate plate should be consistent, and the error is no more than 2 mm.
7. The numbers of flat hammer are associated with the specification of the rotor, the larger the rotor specifications are, the more the numbers of flat hammer are.